Is Ozzy band with zakk wylde better than Black Label Socity?

This is a matter of personal preference. Some people may prefer Ozzy Osbourne's band with Zakk Wylde because they enjoy the heavier sound and more aggressive guitar playing. Others may prefer Black Label Society because they appreciate the band's Southern rock influences and Zakk Wylde's distinct vocal style. Ultimately, it is up to the individual listener to decide which band they prefer.